Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elizabeth Mara Jervik, LMSW

Social Worker in Sioux City, IA · enumerated 2024.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1659104701

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Registry record

Entity type Individual (Type 1)

Name Elizabeth Mara Jervik

Credential LMSW

Sex Female

Practice address 625 Court St, Sioux City, IA, 51101

Phone (712) 252-3871

Enumeration date Aug 23, 2024

Last updated in NPPES Aug 23, 2024

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 126194 (IA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Elizabeth Jervik?

Elizabeth Jervik is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-23.